Calling it "the biggest change to iOS since the introduction of the iPhone," Apple CEO Tim Cook on Monday unveiled an operating system for iPhones and iPads that will radically overhaul how users' touchscreens look.

The new system, iOS 7, was part of a two-hour presentation that included refreshed MacBook Airs, the announcement of an iTunes Radio streaming-music service and a sneak peek at a new Mac Pro that will be the most powerful computer Apple has ever made.

Apple and Facebook have responded to the revelation that the NSA has been collecting huge amounts of data from tech companies, CNN's Dan Simon reports. People's phone records, emails and videos have all been collected by the government.

It's a good thing it's not beach season, because a massive great white shark is vacationing close to the Florida coast.

A group of researchers from "OCEARCH" yanked the 35-hundred-pound, 16-foot-long shark out of the water in September, just off the coast of Cape Cod, Mass. They Nicknamed Her "Mary Lee," and she’s being tracked and monitored via GPS by the research group on their website, where you can see her activity from the last 72 hours.

When OCEARCH saw how close Mary Lee came to Jacksonville Beach yesterday—just 200 yards away—they alerted the Jacksonville Beach police. Chris Fischer is the Founder of OCEARCH. He tagged Mary Lee himself, and called Jacksonville Beach Police all the way from Utah to get the warning out. Police told people to stay away. Fischer joins us live this morning with more. Fischer says he named the shark after his mother, who is eager to know if she will be having any "grand sharks".

We've all got the gadget we can't live with out. For most of us it's our smart phone. But from cool cameras, to e-readers, to 3D TV’s and Rokus, there's gadgets and gizmos aplenty out there. Paul Reynolds is an expert on all things electronic. An editor for Consumer Reports Magazine, he comes to “Early Start” to show some of his top five picks of 2012 electronics. Convenience, versatility, innovation, sleek design and portability are wired into these five devices. See if any of your go-to favorites made his list.

Rick Smolan is the author of “The Human Face of Big Data” and Co-founder of the "America 24/7" and "Day in the Life" photography series. He comes to the studio to explain his book, which demonstrates how real time sensing and visualization of data—from satellites, smartphones, the Internet, computers—has the potential to change every aspect of life on earth.

The concept of is all about being able to collect data, seeing the patterns within it, and turning it into actions to change and impact lives. In "The Human Face of Big Data", Smolan and Jennifer Erwitt illustrate some of the examples of how big data is already giving us a brand new way to see things.

Smolan says there are patterns in the data people collect from everything from our smart devices to our credit cards that are now overlapping and that we are now beginning to perceive. “You’re not just getting more information, you’re getting a new dimension of understanding,” Smolan says. “This is affecting health, transportation, entertainment.”—“National security,” Soledad O’Brien interjects. “Everything,” Smolan says.

Cutting-edge techniques like the ones used in the movie “Avatar” are now being used to monitor and enhance the performance of professional athletes. The technology captures the athlete’s performance from a variety of angles in order to see their exact point of view and which techniques to improve on.

Olympian and 2012 100-meter butterfly gold medalist Dana Vollmer uses the movie magic technology which she says allows her to “see the flows of water and quality of movement” in her body. Vollmer says she has learned that swimming harder does not necessarily mean swimming faster. “It’s more about the rhythm and my relationship with the water,” Vollmer adds.

Chris Bregler is the CEO of Manhattan Mocap, the company that developed this new technology which has been used on the New York Yankees among other athletes. Bregler says an entirely new underwater system was developed for Vollmer using over 32 cameras suspended underwater to capture images of the swimmer’s movement.

“What this does is it gives us a chance to look at the underlying structures in her body that you can’t really pick up with the naked eye, and there are sensations here that you can tweak out of the water,” says her coach, Milton Nelms. “Then Dana can make the translation into the water.”

You probably wouldn't recognize his face, but Sal Kahn's voice is known by countless students.

Kahn founded the "Khan Academy" three years ago with video tutorials on a wide variety of subjects, including photosynthesis, calculus, the Bay of Pigs invasion and more. He has a knack for breaking down and explaining tough topics. Approximately 6 million students view the videos each month, and Khan is changing the way we teach kids.

He's going to be speaking at the Wall Street Journal's "All Things Digital" tech conference taking place in California today. He talks to Soledad on "Starting Point" this morning to talk about how his technique is revolutionizing education, and not just for kids.

New York Times bestseller Grant Cardone and CNN chief business correspondent Ali Velshi were both on the Delta flight that was forced to make an emergency landing last month after birds got into one of the plane's engines shortly after take-off.

Cardone caught the incident on video on his iPad, which he was using despite the fact that electronic devices are supposed to be turned off during airplane take-offs and landings.

The video has gotten Cardone in trouble with the FAA and he's recently received a warning letter letting him know that a record of his rule infringement will be kept for two years.

Today on Starting Point, Cardone explains why he thinks that the FAA's rule about electronic devices is "ridiculous."